White privilege means always getting to have the last word.
I think both John McCain and Barack Obama did well representing their positions and showing what they would be like as President. So on that I would score this as a tie. (I also want to say that McCain did well yesterday when I saw him in person at the Clinton Global Initiative. In fact it was the best I have seen him in a very long time, not the clown we have been seeing this year.)
But I think that by doing this they have offered the American people a clear choice. They contrasted their philosophies very well. For example, McCain argued his position of tax cuts for corporations while Obama argued his position of bottom-up economic growth.
I think there is on more factor here. They also both offered stories. McCain offers the past. Obama offers the future. That is the clear story that was told here.